Feit Electric 400-Watt ED28 Shape Clear Metal Halide High Intensity Discharge E39 Mogul Base HID Light Bulb (1-Bulb) MH400/U/ED28/HDRP - The Home Depot
The Metal Halide Lamp (MH) - YouTube
400 W Metal Halide Tubular Lamp E40 Base 5055875514973 | eBay